Skid Row Joe

Having a Carfax to review before a prospective car purchase is valuable. It can corroborate the specific auto dealer network's information provided on the vehicle. It was invaluable to me in substantiating a case for the purchase of my last pre-owned Mercedes-Benz auto.

Do Carfaxes prove anything? No, but neither do the specific auto dealers' network information one may be given to review. Claiming they're totally worthless, is presumptive.

owc6

Reread my post, I said a negative carfax meant nothing. IF there is information reported, then the info contained would be helpful.

Foosh

It had nothing to do with metal shavings, and the requirement was instituted at the end of the '14 MY. See post #9.

Boiler_81

The change oil and filter for metal shavings is a myth which will not die. Letting metal shavings circulate for 500 miles would make no sense. Damage would be done long before 500 miles were driven.

There was an issue with early oil filters having a burr which would dislodge and get into the oil. This resulted in several damaged engines. The issue with the oil filter was identified about the same time the foaming issue was identified. People put two and two together and came up with five.

cuspid

If I live in Florida and buy a new car in Michigan, I'm not stopping in Georgia to change the oil.

Foosh

You don't have to. It's really not a big deal. Since you should be keeping the rpms down during break-in anyway, just change it when you get home. 1000-1200 easy highway miles shouldn't be an issue.

Skid Row Joe

Right you are.

nikic6

$57,000 for a two year old Corvette is no bargain in my opinion.

owc6

Boiler_81

As a public service, I will pick up and drive any dry sump Corvette purchased in the Detroit metro area and put 500 miles on it free of charge. I will then return the car to the dealership for the 500 mile oil change. You can then pick your new car up at the dealership all ready for the long drive home.

Foosh

Very nice of you Boiler! You're always willing to help out forum folks.

Greg00Coupe

I’ll politly disagree with you. I had a 14 and no such requirement. I bought a 16z in July of 15 and there were no 500 mile requirements.

I always change my oil within 1000 miles especially since I am anxious to track the car. In August of 15 I was at mid Ohio and my friend also in a 16 z blew his engine. In fact there were blown engines left and right all documented on the forum all around #7 cylinder. Doug chevy Akron Ohio had 3 cars in their lot with blown engines in sept 15.

Concerned I made a special trip to Carlisle to chat with the gm boys. They are the ones that told me it was shavings in the oil filters and the manufacturers of said oil filters where replacing engines

The engineer after I told him I had changed my oil, btw my friend did not said not to worry which I haven’t.

In the fall of 15 my local dealer mentioned the extra free oil change. I change my own so did not matter to me.

I lived through all this so am fairly certain I got it correct or else the gm engineer lied to me

Btw my friends car caught fire going down the pit straight away, got stopped next to the rescue truck. Gm gave him a new car.

We had identical black cars, it was an interesting day at the track after he blew up, I ran the car hard as I could in August heat w/o an issue

owc6

Do you have a dry or wet sump?

Boiler_81

There was a lot of confusion when the bulletin came out. Many publications at the time concluded that GMs statement to change the oil in order to eliminate contamination was related to the oil filter issue. This was a false conclusion. The contaminate was the silicon used in the sealants.

The fact that the recommendation remains as part of the maintenance schedule would attest to it not being an issue with the filter as that issue was resolved long ago. In addition, the wet sump engine was also experiencing failure early on and there was never a 500 mile oil change requirement on it.

Once the issue of the oil filter was understood, it certainly would have been prudent to change to filter prior to the burr breaking off and going through the bearings. Once it was dislodged, it would be game over for the engine. That may have been why the engineer told you to change the oil and filter. This would have been independent of the bulletin instituting the mile change for dry sump engines.

I'm not sure when the requirement was first put into place but it was a known requirement of my very early production 2016 Z51. I drove it 500 miles the first weekend and returned to Les Stanford on Monday for the 500 mile oil change.